This book aims to be as simple as possible, but not at the risk of inaccuracy or dumbing-down. The Universe is a big, open place. Astrophysicists tell that universe is made up of atoms. The biggest stars are in it. Thus, our new inventory gives us a new age for the Universe: 13.4 +/- 1.6 Gyr. If these results are correct, an unknown 75% of the Universe has been identified. Existing space and ground-based telescopes have made substantial progress in studying the subsequent evolution of galaxies. The fraction of the universe that we think is made of the same particles as astronomy students has been decreasing steadily. You are in the Universe. (credit: modification of work by NASA/WMAP Science Team) WMAP determined that about 4.6% of the mass and energy of the universe is contained in atoms (protons and neutrons). The atoms around you have existed for billions of years -- and most originated in the flaming, gaseous core of a star. Everywhere in the universe, material objects are composed of atoms of the same types found here on Earth. But what about the other 95 percent? What is the universe made of? Other contents are electromagnetic radiation (estimated to constitute from 0.005% to close to 0.01% of the total mass-energy of the universe) and antimatter." Instead of a Universe made up of 73% dark energy, the best post-Planck estimate puts it at just 68-to-69%. Present day, we can say that Universe is made up of 72% Dark Energy, 23% Dark Matter, 4.6% Baryonic Matter. But it is just not made up of atoms. Yes, universe has atoms. The whole universe is made up of energy - and at this level everything is vibrating. The universe is hiding something. Cosmological and astrophysical observations indicate that most of the Universe is made up of invisible substances that do not emit electromagnetic radiation – that is, we cannot detect them directly through telescopes or similar instruments. Most astronomers think that the Universe was formed during an event called the Big Bang - a giant explosion which occurred between 10 and 20 billion years ago. These protons, neutrons and electrons are bound together to form atom. The universe was then dark (except for this background radiation) until the first stars and galaxies began to form only a few hundred million years after the Big Bang. What Is The Universe Made Of? What is the universe made of? A curious combination of what scientists call dark matter and dark energy accounts for the remaining 95%. We don't even know how big the Universe is! The conventional answer is "Composition. Almost all of the universe — 96 percent — is invisible stuff called dark matter and dark energy. Baryonic matter, the ‘ordinary’ matter that we can encounter and see, accounts for just 5% of the total. Such contents comprise all of energy in its various forms, including electromagnetic radiation and matter, and therefore planets, moons, stars, galaxies, and the contents of intergalactic space. also exist on planets around other stars. Dennis Wildfogel tells the captivating tale of these atoms' long journeys from the Big Bang to the molecules they form today. They are in the Universe. By studying the high-temperature and high-pressure environment of the early universe during BBN, we hope to better understand the particles present in the early universe … In fact, it is hiding a lot. In a way, it is not so much the visible things that define the Universe, but rather the void around them. The universe is a vast and fascinating place. The Universe Made Simple is a book that attempts to describe the universe to someone who knows little or nothing about it to start with. Figure 2. However, the elements that we are familiar with are just part of the story. How was the Universe made? The elements essential to life on earth (carbon, oxygen, hydrogen, nitrogen, etc.) They are very small. The Universe consists of hydrogen (75 %), helium (24 %) and a tiny smattering of heavier elements (1 %). Only 4.6 percent of the universe is made from ordinary atoms, the other 95.4 … Matter known as ordinary, which makes up everything we know, corresponds to only 5% of the Universe. Matter known as ordinary corresponds to only 5 percent of the Universe. Atoms are a small part of our universe. Humans are made of the stuff that everything else is made of in the universe. The universe is made up of ordinary matter, dark matter and dark energy. The amounts of hydrogen, helium, and lithium that are made depend on what these other particles might be. Both theory and observations indicate that the Universe contains huge amounts of dark matter; no one knows what it’s made … Hot gas mainly: 'Cosmic web' of filaments makes up the space between galaxies. Approximately half of this percentage still eluded detection. It aims to explain the basic structure of the universe, our place in it, and some of its core, basic workings. Physicists and astrophysicists at Los Alamos are using supercomputers to simulate Big Bang nucleosynthesis and the early universe to unprecedented precision. It is made of many millions of millions of stars and planets and enormous clouds of gas separated by a gigantic space.. Astronomers can use telescopes to look at very distant galaxies.This is how they see what the Universe looked like a long time ago. [Directed by Pew36 Animation Studios, narrated by Dennis Wildfogel]. Even the smallest things on Earth are part of the Universe. Is the Universe Made of Math? If we look at the human body and go down the scale we find cell, molecules, atoms, sub-atomic particles and pure energy. According to physicists universe is made up of protons neutrons and electrons. Estimates of the age of the Universe depend upon what it is made of. The physical universe is defined as all of space and time (collectively referred to as spacetime) and their contents. [Directed by Pew36 Animation Studios, narrated by Dennis Wildfogel]. Starting in the 1970s, astronomers began collecting evidence that made them suspect there was more to the universe than meets the eye. April 18, 2017. Image to right: Amoebas live on Earth. Scientists Respond All this week, we've been contemplating the great mysteries of the universe. Normal baryonic matter, the stuff most physicists study, makes up about 5% of the Universe. The only chemical elements created at the beginning of our universe were hydrogen, helium and lithium, the three lightest atoms in the periodic table. [Excerpt] In this excerpt from his new book, Our Mathematical Universe, M.I.T. The universe is composed almost completely of dark energy, dark matter, and ordinary matter. 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